hey guys i just installed a mini monitor 4k card on my Hp workstation z820 but my workstation behaves erratically since i installed the card , it takes so long to startup and sometimes it stuck on a black screen so i turn it of on on until it works , also it skips the bios intro (hp logo) when you startup the computer (only black screen then windows enters ) , also my usb interface stopped working for no reason , any solution please .